1907] CURRENT LITERATURE 223 
LIERMOND, at least in some of his drawings, has combined in his metachromatic 
bodies two distinct kinds of granulations, namely, chromatin granules and slime 
globules.—Epcar W. OLIvE 
Papers on algae.—The following papers on algae appear in the volume of 
papers issued by the students of Dr. F. R. Kyetitman in honor of his sixtieth 
birthday. 
Borce”’ lists forty-six species (mostly desmids) of fresh-water Chlorophyceae, 
of which several are new to science, from collections made by Dr. P. Dusén in 
Magellan Ter. in 1896, and in Tierra del Fuego Ter. and Desolation Island in 
1906. He also enumerates 77 species, comprising all the fresh-water Chloro- 
phyceae known at the present time from the islands*south of Magellan Strait. 
Kyxtn™ describes and figures four species of Chantransia, three of which are 
new to science. 
SVEDELIUS’® made a thorough study of the Ceylon reef vegetation at Point de 
Galle in the year 1902-03; first at the time of the winter or northeast monsoon 
(November—March) and later at the time of the summer or southwest monsoon 
(August). His observations were carried on with a view to establishing the 
existence of a periodicity in the marine vegetation of this region, and to showing 
how this was manifested and from what it resulted. He found that there is an 
undoubted antagonism between living coral and algal growth. Only certain 
calcareous algae and forms with creeping rhizomes, such as Caulerpa clavifera, 
can survive. Algal life was richest upon dead coral ledges and exposed rocks. 
The Florideae unquestionably dominate the vegetation of the littoral region at 
Point de Galle. The color of these forms is peculiar, being dark violet, gray- 
brown, or gray-green, instead of red or purple. It was proved that a marked 
periodicity prevails in the littoral algal flora on the coast of Ceylon. Certain 
species occur only at a certain time during the year, and their period of develop- 
ment is extremely limited. The chief mass of vegetation is made up of perennial 
species which live throughout the year; of these many produce fruit only during 
a certain time. Some species show no indication of periodicity, but appear 
the same at all times of the year. It was established that the periodicity depends 
upon the change of monsoon (Monsunwechsel), but the exact causes for this are 
not yet made clear. Apparently the condition of the water (temperature, salinity, 
amount of agitation), as influenced by the monsoon, might have considerable 
effect upon the periodicit 
SKOTTSBERG?° sciacae the Swedish Antarctic Expedition and was in 
» O., Siiss Lae enki von Feuerland und Isla Desolacion. 
Botan » Stier tillignade F. R. KJELLMAN, 21-34. pl. 2. figs. 5. 
IN, Hararp, Zur Kenntnis einigen schwedischen Chantransia-Arten. Op. 
cit. 11 1s tas. 0. 
ELIuUS, Nits, Ueber die Algenvegetation yr ceylonischen Korallen- 
riffes + mit aad Riicksicht auf ihre Periodizitat. Op. cit. 184-221. pl. 6. figs. Io. 
20 or artions Cart, Observations on the vegetation of the antarctic sea. Op. cit. 
245-64. pls. 7-9 
